The Ka x-ray spectra of molybdenum bombarded with 6.7-MeV/u He and 5.5-MeV/u ' 0 ions were recorded with an on-line curved-crystal spectrometer in the DuMond geometry. The instrumental resolution was approximately 10.5 eV. KalL" = "" and Ka&L" = ' principal and satellite lines were observed and resolved for the first time for an atom in the mid-Z region. The relative yields, energies, and linewidths were determined. The yields in the ' 0-induced spectrum deviate significantly from the binomial distribution. The width and energy shifts indicate additional multiple I-shell ionization.
K s X-ray spectra were measured with a Du Mond type curves crystal spectrometer for 42Mo and 46Pd targets bombarded with oxygen ions at 5.5 MeV/u energy (i.e. at velocity closely matching those of the target L-shell electrons). The distribution of L-shell vacancies produced in collisions with simultaneous K-shell ionization is deduced from the measured yield distribution of the K~ X-ray satellites. The distribution shows deviations from the binomial ones. The deviations can be accounted for by assuming that the L-shell vacancy production is due to two uncorrelated processes: the direct ionization by impact and the electron capture from the L-shell of the target atom into the K-shell of the projectile, both occurring at nearly central collisions. The corresponding probability values are deduced using simple statistical considerations.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.